2050909101 has 6 divisors (see below), whose sum is σ = 2962424270. Its totient is φ = 1367272728.

The previous prime is 2050909033. The next prime is 2050909109. The reversal of 2050909101 is 1019090502.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1580062500 + 470846601 = 39750^2 + 21699^2 .

It is not a de Polignac number, because 2050909101 - 2⁹ = 2050908589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2050909109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113939386 + ... + 113939403.

Almost surely, 2^2050909101 is an apocalyptic number.

It is an amenable number.

2050909101 is a deficient number, since it is larger than the sum of its proper divisors (911515169).

2050909101 is a wasteful number, since it uses less digits than its factorization.

2050909101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227878795 (or 227878792 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 2050909101 is about 45286.9639189911. The cubic root of 2050909101 is about 1270.5218474591.

Adding to 2050909101 its reverse (1019090502), we get a palindrome (3069999603).

The spelling of 2050909101 in words is "two billion, fifty million, nine hundred nine thousand, one hundred one".